[kbuild-all] [xiang-linux:xfs/shrink_ags 2/4] fs/xfs/libxfs/xfs_alloc.c:2478:1: warning: no previous prototype for 'xfs_ag_emptify_agfl'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/xiang/linux.git xfs/shrink_ags head: 8e4c0f86c42774434d1935594d324be8dd834d02 commit: a796c2abb6f7baaf26e82e907d71cfdc30febcce [2/4] xfs: check ag is empty config: i386-randconfig-r035-20210414 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/xiang/linux.git/commit/?i... git remote add xiang-linux https://git.kernel.org/pub/scm/linux/kernel/git/xiang/linux.git git fetch --no-tags xiang-linux xfs/shrink_ags git checkout a796c2abb6f7baaf26e82e907d71cfdc30febcce # save the attached .config to linux build tree make W=1 W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): 2478 | xfs_ag_emptify_agfl( | ^~~~~~~~~~~~~~~~~~~ vim +/xfs_ag_emptify_agfl +2478 fs/xfs/libxfs/xfs_alloc.c 2476 2477 int 2479 struct xfs_buf *agfbp) 2480 { 2481 struct xfs_mount *mp = agfbp->b_mount; 2482 struct xfs_perag *pag = agfbp->b_pag; 2483 struct xfs_trans *tp; 2484 int error; 2485 struct xfs_owner_info oinfo = XFS_RMAP_OINFO_AG; 2486 2487 error = xfs_trans_alloc(mp, &M_RES(mp)->tr_growdata, 0, 0, 2488 XFS_TRANS_RESERVE, &tp); 2489 if (error) 2490 return error; 2491 2492 /* attach to the transaction and keep it from unlocked */ 2493 xfs_trans_bjoin(tp, agfbp); 2494 xfs_trans_bhold(tp, agfbp); 2495 2496 while (pag->pagf_flcount) { 2497 xfs_agblock_t bno; 2498 int error; 2499 2500 error = xfs_alloc_get_freelist(tp, agfbp, &bno, 0); 2501 if (error) 2502 break; 2503 2504 ASSERT(bno != NULLAGBLOCK); 2505 xfs_defer_agfl_block(tp, pag->pag_agno, bno, &oinfo); 2506 } 2507 xfs_trans_set_sync(tp); 2508 xfs_trans_commit(tp); 2509 return error; 2510 } 2511 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org